Hatco Corporation
Booster Water Heater Presentation
36
Replacing Bearings (04.05.286.00)
Error Codes
Error Message
Troubleshooting
Corrective Action
(if Troubleshooting fails to fix)
Temperature Probe Error
Verify wire connections on RTD
temperature probe. Check
resistance across probe.
Replace temperature probe.
Control Board Overtemp
Check fan for physical blockage that
would prevent fan from turning.
Verify voltage to fan. Make sure unit
is on legs and filter is clear.
Replace cooling fan.
Heating Error
Verify all wire connections on relay
and element. Check resistance
across failing heating element.
Replace heating element.
Communication Error
Update software—download from
Hatco website to USB drive. Follow
the “Updating Firmware” procedure.
Replace electronic control.
Touch Panel Error
Check touchpad for grease and dirt
buildup. Perform “Cleaning the
Touchscreen Control” procedure in
MAINTENANCE section on manual.
Replace electronic control.