PI Control Panel Operation and Fault Signals

GB Heaters

Wallas PI control panel
Wallas fault signals for GB heaters

Stoves and Blower Lids

Wallas Cooker Control
Wallas fault signals stoves


If the unit has locked itself, all three lights at the top of the panel will flash, signaling there has been a failure that should be investigated and resolved prior to further use. Lights will flash for about 5 min.

1) While the lights are flashing, switch the main power off from the battery (Pull power plug, remove the fuse, open breakers, or in-line switch).

2) Wait for 5 sec. and switch the main power back on.

3) Press Heat Button (3) for more than 3 seconds to shut down the heater.

4) Restart the heater normally.


See instructional video to unlock: