Classic Built-In units with electronic control, such as the BI-36U/S, use a small fan to move air through the air purification filter. 90-A-38 means the FET power output on the control board that runs that air…
Classic Built-In units with electronic control, such as the BI-36U/S, use a small fan to move air through the air purification filter. 90-A-38 means the FET power output on the control board that runs that air filter fan reported an error. The filter fan stops, so odors may linger longer inside the cabinet, though cooling is generally unaffected for now and temperatures usually hold.
1. Note 90-A-38. 2. Check that the air filter is seated correctly in its housing. 3. Turn off the dedicated breaker, wait a couple of minutes and power back up. 4. Listen near the filter for the fan running. 5. Call us if the code returns, and leave the filter in place meanwhile.
It pushes cabinet air through the purification filter so stale odors are reduced. When its board output fails, as with 90-A-38, the filter only works passively and smells can build up.
Not from this code alone. Cooling continues, though odors may spread between foods faster. Covering strong-smelling items such as onions, cheese and fish helps until the repair is done.
Either can cause it. A seized or shorted fan can overload the output, or the output can fail by itself. We measure both and quote in writing for the part that tested bad.
A technician diagnoses it on site and gives you the price in writing before any work starts.
