Maytag Dryer Error Code F:20

F:20 means the electronic control board detected no voltage at the heater relay during Diagnostic Test Mode. This code only appears when the dryer is running its built-in self-test, not during a regular drying cycle. It points to a problem in the circuit between the control board's heater relay and the heating element, most often a loose wire connection at one of those two points.

Because F:20 only appears in Diagnostic Test Mode, you may not notice any performance issue during normal drying. However, the code indicates a fault in the heating circuit, which could mean the dryer is not heating efficiently or at all. It is best to diagnose and resolve the fault before continuing regular use to avoid incomplete drying cycles or further electrical issues.

A power reset, such as unplugging the dryer for a few minutes, may temporarily clear the code from the display. However, because F:20 is generated during Diagnostic Test Mode by an active voltage check, the code will return the next time diagnostics are run if the underlying wiring or component fault has not been corrected. A reset alone does not fix the problem.

In many cases, yes. The first step is to unplug the dryer and check that the wire connectors are fully seated at the heating element and at the heater relay on the control board. If reseating the connectors clears the code during the next diagnostic test, no parts are needed. If the fault persists, further testing with a multimeter is required to identify whether the harness, heating element, or control board needs to be replaced.

If the fix is simply reseating a loose connector, there is no parts cost involved. If the heating element needs replacement, parts typically run in the range of $20 to $60 depending on the model. A replacement electronic control board is the most expensive possibility, generally ranging from $100 to $250 or more for parts alone, with additional labor costs if a technician performs the repair.