What E37 means on your Asko washer (asko washer e37)
An asko washer e37 code on the WM75/PMCU platform means the software versions running on the PMCU module and the user interface board do not match or are not compatible with each other. This is distinct from E36’s hardware communication error — E37 is specifically a version mismatch, most likely to appear after a board has been replaced with one running different firmware than its partner board.

Symptoms
Compare these symptoms with your Asko washer first, since two different problems can look nearly the same until you look closely. The washer may throw one sign or several together, developing over time or breaking out suddenly after a power event, a strenuous cycle, or a new install.
- E37 shows on the display, most commonly after a repair or board replacement
- The washer may otherwise operate normally until a program is started
- Certain program options may be missing or behave unexpectedly
- The problem is unlikely to appear on a machine that has never had a board replaced
Common causes
Because different problems can present the same way on your Asko washer, the list is arranged from most likely to least. Working down it in order keeps a simple washer check distinct from a problem that genuinely needs a technician and the correct Asko part.
- Mismatched replacement board — a new PMCU module or interface board is running firmware that does not match its partner board
- Incomplete update after a repair — a service update was not fully applied to both boards
Troubleshooting steps you can try
Before calling anyone out, run through these checks on your Asko washer in sequence, as a fair number of problems clear at this stage. Draw the line wherever you feel out of your depth on the washer, or where mains power, gas, heat, water, or a sealed component comes into play, and let a technician finish.
- Note whether this washer has had a control board replaced recently, since that is the most likely trigger.
- Power-cycle the washer once to confirm the code is persistent rather than a one-off glitch.
- Avoid attempting to update firmware yourself, since this requires manufacturer-level tools.
- Book service and mention any recent repair work when reporting E37.
Parts a technician may replace
Where the problem on your Asko washer traces to hardware, a technician inspects, tests, or replaces the pmcu control module firmware and user interface board firmware first. Each is matched to your washer by model, serial, and Art. No., and genuine OEM or trusted-supplier components are used so the washer performs as it should.
When to call a technician
E37 needs an experienced technician with the correct diagnostic tools to match or update the PMCU and user interface firmware on your Asko washer. At Medium severity this is nothing urgent for your Asko washer, though E37 returning on the washer despite the checks above is worth having a technician diagnose before parts are ordered. Because we operate independently of the manufacturer, your Asko washer is in the hands of experienced technicians using genuine OEM or trusted-supplier parts, and the labor on the washer carries a 30-day warranty. Give us your Asko washer’s model, serial, and Art. No. at booking and the correct component for your build is lined up ahead of the appointment, so E37 on the washer is cleared promptly.
Related help and Asko resources
If E37 keeps returning on your Asko washer after these checks, book Asko washer repair, browse our full set of washer error-code guides, work through our step-by-step repair guides, schedule service online, or find help near you on our locations page. For a closely related problem on your Asko washer, see E36 communication error. Your Asko washer’s full documentation and model lookup are available from the manufacturer at us.asko.com.