Is Your MCE Controller a Fire Risk? Check This Bulletin Number

If your building has MCE iControl or Motion 4000 controllers, a Canadian regulatory authority has ordered mandatory VFD replacement due to fire risk.

The reason: IGBT transistor failures cause uncontrolled regenerative power to flow to Dynamic Braking Resistors. The resistors overheat. The controller catches fire.

Technical Safety BC issued Safety Order SO-ED 2023-02 with a compliance deadline of August 31, 2024. That deadline has passed. If your building has affected equipment and the VFD has not been replaced, you may be operating a non-compliant elevator with documented fire risk.

Here is what property managers need to know, what questions to ask, and what steps to take.

What Technical Safety BC Found

Technical Safety BC regulates elevating devices in British Columbia. Their investigation identified a critical failure mode in MCE controllers that creates fire conditions in the controller cabinet.

The failure mechanism involves IGBT (Insulated Gate Bipolar Transistor) modules in KEB F5 480V VFDs. These transistors handle high-power switching in the variable frequency drive. When an IGBT fails prematurely, it fails short rather than open. This creates a continuous power path where none should exist.

Under normal operation, regenerative power from the elevator motor flows through controlled circuits to Dynamic Braking Resistors during deceleration. The resistors dissipate energy as heat in a controlled manner. The system is designed to handle these thermal loads.

When an IGBT shorts, regenerative power feeds back in an uncontrolled manner. The Dynamic Braking Resistors receive continuous power they were not designed to handle. Heat builds beyond rated limits. The resistors overheat. Without intervention, the controller cabinet catches fire.

This is not a theoretical risk. Technical Safety BC issued Safety Order SO-ED 2023-02 based on documented incidents. The failure mode is reproducible and predictable.

Understanding how VFD failures manifest helps property managers recognize warning signs before catastrophic failure. But in this case, the specific failure mode may provide little warning before the fire condition develops.

Affected Equipment

The safety order applies to specific MCE controller and VFD combinations.

Controllers affected:

• MCE iControl
• MCE Motion 4000 Series

VFDs affected:

• KEB F5 480V size 16/17 G-Housing Variable Frequency Drives
• Model numbers: 16F5A1G-RPxx, 17F5A1G-RPxx

If your building underwent modernization in the past decade and received MCE controllers, there is a reasonable probability you have affected equipment. MCE is one of the major independent elevator controller manufacturers serving the North American market. Their equipment appears in modernization projects from coast to coast.

How to Identify Your Equipment

To determine if your building has affected controllers:

1. Check your modernization documentation. The controller manufacturer and VFD model should be identified in the scope of work, acceptance inspection report, or close-out documentation from your modernization project.

2. Look at the controller cabinet. MCE controllers are labeled with manufacturer identification. Look for "iControl" or "Motion 4000" designations on the cabinet door or internal nameplates.

3. Identify the VFD. The variable frequency drive will have its own nameplate. Look for "KEB" manufacturer identification and model numbers beginning with 16F5A1G or 17F5A1G.

4. Ask your elevator contractor. If you have a maintenance agreement, your contractor should know what equipment they are servicing. Ask directly: "Do we have MCE iControl or Motion 4000 controllers? What VFD is installed?"

Compliance Timeline

Technical Safety BC established two compliance deadlines:

February 1, 2024: Building owners and contractors were required to survey their portfolios and report all units with affected equipment to the authority. This was the inventory deadline.

August 31, 2024: ALL affected VFDs must be replaced, regardless of warranty status. This was the compliance deadline. No exceptions. No extensions.

Both deadlines have passed. If your building has affected equipment and the VFD has not been replaced, you are operating a non-compliant elevator under the safety order.

Jurisdictional Considerations

The safety order was issued by Technical Safety BC in British Columbia. But the physics of IGBT failure do not change at the border. MCE controllers with KEB F5 VFDs installed in the United States face the same failure mode and fire risk.

American jurisdictions have not uniformly adopted this safety order. Elevator codes vary significantly state by state. Some state elevator authorities track Canadian safety orders. Most do not. The absence of a US safety order does not mean the equipment is safe.

The liability implications are significant. If a fire occurs in a building with affected equipment, and the building owner was aware of or should have been aware of the Canadian safety order, liability exposure increases substantially. "We didn't know about the Canadian order" may not be a defense when the information was publicly available.

The $3,500 Monitoring Kit Controversy

MCE offers a monitoring circuit kit to address the fire risk without full VFD replacement. The kit costs approximately $3,500 per unit and monitors for transistor shorts. When a short is detected, the kit triggers an alarm before the fire condition develops.

Practitioners have criticized this approach. One mechanic's comment from industry forums captures the sentiment: "Why proper thermal protection was not designed in to the controller originally and why we have to pay MCE a whole bunch of money to fit a design flaw."

The criticism raises legitimate questions:

Is this a design flaw being monetized? Proper engineering includes fail-safe protections for foreseeable failure modes. IGBT failure is not a surprise. Why was thermal protection for Dynamic Braking Resistors not part of the original design?

Does the monitoring kit eliminate risk or just reduce it? A monitoring system detects the failure in progress. It does not prevent the failure. There is a window between detection and response. Is that window sufficient to prevent all fire risk?

Why $3,500? The kit monitors for a specific failure mode. The components involved are not exotic. The price appears to reflect what the market will bear rather than cost-plus engineering.

Property managers should understand these questions before deciding between monitoring and full VFD replacement. The monitoring kit may be appropriate for some situations. But "MCE says it's safe now" is not a comprehensive risk assessment.

For context on how OEMs sometimes monetize problems they created, see our analysis of the elevator obsolescence trap. The pattern of manufacturers creating situations that require expensive solutions from the same manufacturer is well documented in this industry.

What Property Managers Should Do

If you have MCE iControl or Motion 4000 controllers in your building, take these steps:

Step 1: Confirm Your Equipment

Contact your elevator contractor and ask: "Do we have MCE iControl or Motion 4000 controllers?" Get a direct answer with documentation. If yes, proceed to Step 2. If the answer is no, request written confirmation of what controllers you do have.

Do not accept "I think so" or "probably not." This is a documented fire risk. You need certainty.

Step 2: Verify VFD Status

Ask your contractor: "Do our MCE controllers have KEB F5 VFDs with model numbers 16F5A1G-RPxx or 17F5A1G-RPxx?" If yes, ask: "Has the VFD been replaced per Technical Safety BC Safety Order SO-ED 2023-02?"

If the VFD has been replaced, request documentation showing:

• Date of VFD replacement
• New VFD model number
• Contractor acknowledgment that replacement was performed to comply with SO-ED 2023-02

Step 3: Escalate If Non-Compliant

If your building has affected equipment and the VFD has not been replaced, escalate immediately. This is not a routine maintenance item. This is a fire risk identified by a regulatory authority with a compliance deadline that has passed.

Contact your building's ownership or asset management. Contact your insurance carrier. Document everything. The conversation should not be "when can you get to this" but "this needs to happen now."

When elevators fail after maintenance, property managers often discover that problems were known but not addressed. Do not let this be that situation.

Step 4: Review Your Maintenance Contract

Pull your maintenance agreement and review the sections covering:

Safety bulletins: Does your contract require your contractor to notify you of manufacturer safety bulletins? Did they notify you of this issue?

Code compliance: Does the contract require the contractor to maintain equipment in code-compliant condition? A safety order from any jurisdiction arguably triggers this obligation.

Covered repairs: Is VFD replacement covered under your current agreement? Full maintenance contracts vary in how they treat manufacturer-mandated repairs.

Exclusions: Many contracts exclude "manufacturer recalls" or "safety orders" from covered work. Check what hidden fees or exclusions might apply.

If the VFD replacement would be billed as an extra charge, you need to know the cost. If it should have been covered but was not performed, you may have a claim against your contractor.

Upload your contract to our Contract Scanner to identify gaps in coverage that affect this situation.

Step 5: Document Your Compliance

Once the VFD has been replaced or the monitoring kit has been installed, maintain documentation:

• Written confirmation from contractor of work performed
• New VFD model number or monitoring kit installation certificate
• Date of compliance
• Invoice and payment records

This documentation matters for insurance purposes, for liability protection, and for future due diligence if the building is sold.

Questions to Ask Your Contractor

Use this checklist in your next conversation:

Equipment identification:

• Do we have MCE iControl or Motion 4000 controllers?
• Do we have KEB F5 480V VFDs? What are the exact model numbers?
• When was this equipment installed?

Safety order compliance:

• Are you aware of Technical Safety BC Safety Order SO-ED 2023-02?
• Has the affected VFD been replaced in our building?
• When was the replacement performed?
• Can you provide written documentation of compliance?

If not yet compliant:

• What is the timeline for VFD replacement?
• What is the cost? Is this covered under our current agreement?
• What is the fire risk in the interim?
• Should the elevator be taken out of service until replacement is complete?

If recommending monitoring kit instead of replacement:

• Why is the monitoring kit preferable to VFD replacement?
• What happens if the monitoring system detects a short? What is the response time?
• Does the monitoring kit eliminate fire risk or just reduce it?
• Is Technical Safety BC accepting monitoring as equivalent to replacement?

Document the answers. Compare them to your contract language. This is standard due diligence for equipment that carries a fire risk identified by a regulatory authority.

Understanding the Repair Economics

VFD replacement costs vary by drive size and configuration, but property managers should understand the likely price range.

For affected KEB F5 drives in MCE controllers, replacement costs typically run:

VFD hardware: $4,000 to $8,000 depending on horsepower and configuration

Installation labor: $1,500 to $3,000

Total installed cost: $5,500 to $11,000 per unit

The $3,500 monitoring kit is cheaper than full replacement. But the monitoring kit does not eliminate the underlying hardware defect. It monitors for the failure and alerts when it occurs. The VFD still contains the defective components.

For buildings with multiple elevators, the economics multiply. A three-elevator building with affected equipment faces $16,500 to $33,000 for full VFD replacement versus $10,500 for monitoring kits. The cost difference is significant, but so is the risk profile.

Review what elevator repairs actually cost to benchmark these numbers against typical component pricing.

Contract Implications

If your building has MCE equipment, consider the implications for your next contract cycle.

Disclosure in competitive bidding: When you solicit maintenance bids, disclose that you have MCE controllers with this safety order history. Ask prospective contractors about their experience with MCE equipment and Safety Order SO-ED 2023-02 compliance.

Contract language for safety bulletins: Consider adding provisions requiring your contractor to notify you within a specified timeframe of any manufacturer safety bulletins affecting your equipment. Many contractors do this voluntarily. A contract provision makes it mandatory.

Coverage for mandated repairs: Clarify how your contract treats repairs mandated by safety orders. "Full maintenance" sounds comprehensive, but contract language matters for situations like this.

Modernization planning: If you are planning a modernization project, this safety order history informs your controller selection. MCE remains a viable choice, but you should ask about design improvements that address the Dynamic Braking Resistor thermal protection issue.

Review evergreen clause traps before your current contract auto-renews. This may be an appropriate time to renegotiate terms.

The Bigger Picture

This safety order illustrates why independent monitoring of elevator industry developments matters for property managers.

Technical Safety BC issued their safety order in Canada. There was no press release to American building owners. The information circulates through practitioner forums and industry channels that most property managers never see.

If you were not monitoring Canadian elevator regulatory activity or participating in mechanic forums where practitioners discuss equipment problems, you would not know about this issue unless your contractor told you. And contractors have mixed incentives when it comes to revealing problems that generate expensive repair bills.

This is why we exist at ElevatorBlueprint. Property managers face information asymmetry that favors vendors and manufacturers. When you know what regulatory authorities are finding, what practitioners are reporting, and what safety issues are emerging, you can protect your buildings.

MCE makes quality equipment that serves thousands of buildings reliably. This safety order does not mean MCE controllers are universally dangerous. It means a specific failure mode in a specific VFD model creates fire risk, and property managers with affected equipment need to take action.

Independent information changes the equation.

The Bottom Line

Technical Safety BC found that KEB F5 VFDs in MCE iControl and Motion 4000 controllers can cause controller fires. Safety Order SO-ED 2023-02 mandated VFD replacement by August 31, 2024. The deadline has passed.

If you have MCE equipment:

1. Confirm your equipment status. Know exactly what controllers and VFDs are in your building.

2. Verify compliance with SO-ED 2023-02. Get written documentation that affected VFDs have been replaced.

3. Understand your contract coverage. Know whether the replacement is covered or billed separately.

4. Document everything. This equipment has a regulatory history. Your records matter.

5. Consider liability exposure. Operating equipment with a documented fire risk after a safety order deadline has passed creates exposure.

The safety order is serious. It is also addressable. Property managers who take action protect their buildings and their tenants. Those who assume their contractor handled it may be operating non-compliant equipment with fire risk.

When a regulatory authority issues a mandatory safety order with fire as the identified risk, "probably fine" is not a standard we recommend.

Related Resources

• VFD Failure Diagnostics Guide explains how VFD failures manifest and how to evaluate repair versus replacement.
• Independent Elevator Controller Guide covers all major controller manufacturers including MCE, SmartRise, Virginia Controls, and Alpha.
• Elevator Obsolescence Trap reveals how manufacturers create artificial scarcity and monetize equipment problems.
• What Elevator Repairs Actually Cost provides benchmark pricing for components including VFDs.
• Elevator State Code Compliance Guide explains jurisdictional differences in elevator regulation.
• Elevator Liability for Property Owners covers your exposure when equipment problems cause injuries.
• Full Maintenance vs Examination Contract explains coverage differences that affect mandated repairs.
• Hidden Fees in Elevator Maintenance Contracts identifies exclusions that may apply to safety order compliance.
• Contract Scanner analyzes your maintenance agreement for gaps that affect situations like this.

Copyright 2026 ElevatorBlueprint. All rights reserved.