A new Modine HVAC recall affects thousands of Airedale ClassMate and SchoolMate heating and cooling units after reports that a ventilation-fan motor assembly can short circuit and overheat when water reaches its electronics.
The U.S. Consumer Product Safety Commission announced the recall on August 20, 2026. It covers approximately 6,061 units in the United States, with another 735 affected units reported in Canada. According to the CPSC, Modine has received 11 incident reports involving fires and at least $2.7 million in property damage. No injuries have been reported.
For facility managers, school maintenance departments, electricians, HVAC technicians and anyone responsible for institutional equipment, the recall is also a reminder that a relatively small component — in this case a ventilation-fan assembly — can create a much larger equipment and facility risk.
Quick Take
Certain Airedale by Modine ClassMate and SchoolMate heat pumps are being recalled because water can reach electronics associated with the ventilation-fan assembly, potentially causing a short circuit, electrical arcing, overheating and fire. Owners of affected equipment should verify whether their units have already received Modine’s remediation and contact Modine or an authorized distributor if they have not.
What Equipment Is Included in the Modine HVAC Recall?
The recall involves ventilation fans installed in certain Airedale by Modine ClassMate DX Cooling and Air Source Heat Pumps and SchoolMate Water/Ground Source Heat Pumps.
Affected model families identified by the CPSC include:
| Model | Affected Ventilation Configuration |
|---|---|
| CMD | C, D or E |
| CMP | C, D or E |
| SMG | H, J, K, N or P |
| SMW | H, J, K, N or P |
| CMS | H, J, K, N or P |
The Airedale name appears on the front of the equipment. The CPSC says the model and serial number can be found on the serial plate on the underside of the control unit.
The affected systems were sold through independent dealers nationwide from August 2013 through January 2026.
Before You Inspect Your Records
Maintenance personnel should gather:
- Equipment model number
- Serial number
- Ventilation configuration
- Installation location
- Installation or commissioning date
- Service records
- Previous Modine recall or remediation correspondence
- Documentation showing whether a certified technician has already serviced the unit
The goal is not simply to determine whether a facility owns a ClassMate or SchoolMate unit. The exact model and configuration matter.
What Is Causing the Fire Hazard?
According to the CPSC, the ventilation fan motor can short circuit if water gets onto the circuit board, potentially causing the equipment to overheat and creating a fire hazard.
Modine describes the issue somewhat more specifically as possible electrical arcing within the blower assembly when water contacts the electronics during operation. The company says that condition can lead to a thermal event if it is not addressed.
That distinction is useful for maintenance personnel.
A motor-related problem does not always originate with the motor’s windings, bearings or mechanical load. Electrical controls, moisture intrusion, connectors, wiring and associated electronics can all influence what initially appears to be a motor failure.
What This Means
Replacing a motor without identifying why an electrical failure occurred can leave the underlying problem unresolved. In this recall, the manufacturer’s prescribed remedy addresses the affected blower assembly and its protection rather than treating the situation as an ordinary failed-motor replacement.
Eleven Fires Have Already Been Reported
The CPSC reports that Modine has received 11 incident reports involving fires, with reported property damage totaling at least $2.7 million.
No injuries have been reported.
Those incident numbers make this more than a precautionary notice based solely on laboratory testing or a theoretical failure mode.
They also explain why facilities with potentially affected equipment should not assume that an HVAC system is unaffected simply because it continues to operate normally.
Electrical failures involving moisture and arcing may not necessarily produce an obvious mechanical warning long before a failure occurs.
What Should Owners of Affected Units Do?
The CPSC instructs owners to stop using recalled units immediately and contact Modine for written instructions covering the affected ventilation fan or internal disconnect. Owners should then arrange a free inspection and service through a Modine distributor.
Modine says that if a unit has already received the company’s remediation, it should operate normally and no additional action is required.
For units that have not yet been serviced, Modine recommends temporarily disabling the affected OA/EA ventilation fans or turning the appropriate internal disconnect off until a certified Modine technician can perform the repair. Written instructions are available from the manufacturer.
Safety Check
Do not improvise a repair based solely on a description of the failure.
The official recall provides a manufacturer-directed inspection and remediation process. Facility personnel should follow the instructions supplied by Modine and use appropriately qualified service personnel.
This is particularly important with equipment involving energized electrical components and a known arcing or overheating condition.
Modine Says Most U.S. Units Have Already Been Remediated
There is an important timing detail behind the August 20 recall announcement.
Modine says remediation work began earlier in 2026 and that substantially all affected units in the United States have already been remediated. Remaining units are still being addressed.
According to Modine, technicians have installed additional fuses in affected blower assemblies that are operating properly. Where a blower assembly is not functioning correctly or shows evidence of a thermal event, the affected assembly is disabled until a replacement can be installed.
That means the August 20 CPSC announcement should not be interpreted as meaning every affected unit remains unrepaired.
For maintenance departments, the immediate question is:
Has this specific unit already received the approved remediation?
If the answer cannot be documented, the facility should verify its status with Modine.
Common Mistake
Do not assume that previous routine HVAC service automatically addressed this recall. Look for documentation showing that the specific Modine remediation was completed on the affected unit.
A Useful Lesson for Facility Maintenance Programs
Although this recall concerns specific Modine equipment, it illustrates a broader maintenance problem.
Facilities often maintain service records around entire machines:
- HVAC unit
- Pump
- Air handler
- Motor
- Compressor
- Conveyor
- Gearbox
- Production machine
But safety notices can apply to a much narrower component or configuration inside that equipment.
That creates an asset-management challenge.
A maintenance database that records only “Modine HVAC Unit” may not contain enough information to determine whether a recall applies. Model numbers, serial numbers, component configurations and service modifications can become critical.
Practical Checklist for Maintenance Departments
For this recall and similar equipment notices:
- Identify equipment by exact model and serial number.
- Confirm the configuration specified in the recall.
- Check previous service and remediation records.
- Photograph or record the equipment nameplate.
- Document the unit’s physical location.
- Contact the manufacturer when recall status is uncertain.
- Record the date the remedy is completed.
- Retain the manufacturer’s service documentation with the asset record.
That information can dramatically simplify future recall investigations.
CPSC and Modine Report Slightly Different Unit Totals
The CPSC lists approximately 6,061 affected units in the United States plus about 735 in Canada.
Modine describes the issue as affecting approximately 6,500 units in North America.
Because one figure comes from the federal recall notice and the other is the manufacturer’s approximate North American figure, they should not be silently treated as identical.
For U.S. readers, the CPSC’s figure of approximately 6,061 U.S. units is the most useful number for identifying the scope of the federal recall.
How to Check an Airedale ClassMate or SchoolMate Unit
Owners should start by identifying the equipment rather than attempting to diagnose the failure themselves.
Look for the Airedale branding and obtain the model and serial-number information from the equipment plate.
Compare the model and ventilation configuration with the recall list.
If the unit appears to be affected — or if its remediation status is uncertain — contact Modine or the distributor responsible for the equipment.
The CPSC lists Modine’s recall contact number as 888-636-8627, available Monday through Friday from 8 a.m. to 5 p.m. Central Time.
The Bottom Line
The Modine HVAC recall involves a specific but potentially serious electrical failure: water reaching electronics associated with a ventilation-fan assembly can result in electrical arcing, short circuiting, overheating and fire.
Eleven reported fires and at least $2.7 million in property damage make verification worthwhile for any facility operating the affected Airedale ClassMate or SchoolMate equipment.
The encouraging part is that Modine says most affected U.S. units have already been remediated.
The priority for maintenance departments now is therefore straightforward: identify the unit, verify its exact configuration, confirm whether the approved remediation has already been completed, and contact Modine if its status cannot be documented.