What part would most likely be able to be replaced on an ECM motor?
It generally means replacing the motor, the speed control, and blower assembly. It will likely also require additional components like power cables, communication cables, and a power filter.
Can you replace a PSC motor with ECM motor?
Both your heating costs as well as the comfort level inside your home can benefit by upgrading from an outmoded PSC unit to an ECM furnace blower motor. It’s a good bet that the motor inside your existing furnace blower is a PSC (permanent split capacitor) type.
How do you test an ECM motor?
If the motor does not run, make sure you have power to the IFC board and then check the voltage between pins 4 and 5 of the 5 pin plug on the motor. You should read 115 volts. If voltage is not present, the motor will not run. Check for a break in the wiring between the IFC board and the motor.
Is an ECM motor worth it?
ECM motors are expected to keep homeowners more comfortable, too. First, they provide more efficient airflow. Some homeowners may opt for repairing an old furnace, but it can be a costly decision when compared to the energy savings of replacing it with an energy efficient furnace.
How much does an ECM motor cost?
An HVAC blower motor replacement costs an average of $450 but anywhere from $150 to $2,000 to replace….HVAC Blower Parts Cost.
| Belt | $5 – $100 |
|---|---|
| Housing | $100 – $300 |
| Capacitor | $150 – $450 |
| ECM Motor Module | $230 – $830 |
How are ECM motors used in HVAC systems?
ECM motors are commonly used in HVAC systems these days as blower motors. This includes air conditioners, heat pumps, and furnaces. ECM Motors can adjust the air flow depending on what the system is getting for feedback.
What to look for when replacing an ECM?
Once you know your TESP and your fan speed setting look up delivered fan airflow on the manufacturer’s fan table. If you’re replacing or servicing equipment with an ECM, and the TESP exceeds rated capacity, be sure to look up motor amp draw in the manufacturer’s specifications.
Can a ECM motor be used in a TESP system?
In marginal systems with higher-than-design static pressures — for example a .5–in. TESP rated furnace with ECM on a .8–in. TESP system — the motor still may be able to maintain airflow close to design. The tradeoff is higher velocities often cause a noisy system and some coil blow-off.
What to do if your ECM has a high AMP draw?
If you’re replacing or servicing equipment with an ECM, and the TESP exceeds rated capacity, be sure to look up motor amp draw in the manufacturer’s specifications. Armed with this information you should do two things: First, alert your customer that their system has a high “blood pressure” problem that needs to be addressed.