Dexter Dryer Error Code PCB ERROR2: Analog/Digital Error
PCB ERROR2 means the control board reports a problem converting analog and digital signals. The manual says to power the machine down and try to reset the control, verify voltage and ground at the board, and replace the board if the error cannot be cleared.
Medium: the control board is reporting an internal problem and the dryer may not run until it is cleared or replaced.
What does Dexter PCB ERROR2 mean?
A dryer control board has to read analog signals such as the voltages coming from its sensors and turn them into digital numbers it can use. That job is done by an analog-to-digital converter. If the board finds that conversion is not working, it displays PCB ERROR2, with the message “PCB ERROR2 (Analog/Digital Error)”.
The manual does not name the sensor or the circuit. It gives the same remedy as for the other control board errors: power the machine down and try to reset the control, verify the voltage to the board, check the ground to the board, and replace the control board if the error cannot be cleared. That is a reasonable way to deal with a problem on the board itself, because the board has to be sound before anything it measures can be trusted. Note that this is a message about the board, not a statement that the dryer's heat or thermostat has failed.
Affected models and control systems
Dexter coin-operated dryers with the electronic control. The document prints no model list, and it does not state which dryer sizes the table covers.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- PCB ERROR2 on the display
- The dryer does not run or stops soon after starting
- The code returns after a restart
Possible causes
Likely causes — what usually sits behind PCB ERROR2 on this control. A technician confirms which one it is before any part is replaced.
- Board supply voltage low or noisy, upsetting the converter
- Poor ground at the control board
- Converter circuit on the board failing
Safe checks before calling for service
- Switch the dryer off, wait a minute and switch it on again to reset the control.
- Check whether PCB ERROR2 comes back on the display.
- Do not open the panel.
- Report whether the dryer was running or idle when the message appeared.
How a technician diagnoses PCB ERROR2
- Reproduce the message after a power-down reset.
- Measure the supply voltage to the control board.
- Check the ground to the board and the cabinet.
- Inspect the board for damage and connector problems.
- Replace the board if the error cannot be cleared.
- Supply and ground checks happen inside the cabinet near live wiring.
- A noisy supply can imitate a board failure and needs measurement to rule out.
- A replacement board has to be matched to the dryer model.
Technical reference
- Document
- Dexter Safety Guidelines / Common Dryer Troubleshooting Issues & Solutions / Troubleshooting Dryer Fault Errors/Codes (first-page headings; no separate cover title)
- Maker documentation
- Dexter owner support
- Models / control
- Dexter coin dryers with the electronic control; no model list printed (the T-30 to T-120 range is not stated in the document text)
- Section
- Dryer Error Codes table (Symptom / Probable Cause / Suggested Remedy), p. 6
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Dexter dryer error codes
Does PCB ERROR2 mean a sensor failed?
The manual does not say so. It describes an analog/digital error on the board.
Is this the same as F3?
No. F3 is corrupted memory. PCB ERROR2 is about analog to digital conversion.
What should I try first?
Power the dryer down and restart it, which is the manual's first step.
Need help with Dexter PCB ERROR2?
A technician confirms the cause on site and gives you the price in writing before any work starts.