®
P/N 1010455 Rev. K 10/20
12
Troubleshooting
Problem
Possible Cause
Corrective Action
Control Display is blank (power is on but
indicator light is off).
The power cord is not correctly plugged
in.
Plug the power cord into the appropriate
outlet.
The power cord and/or electrical plug is
damaged.
Inspect electrical wire, plug, and
receptacle.
The main electrical panel circuit breaker
is off or has been tripped.
Reset circuit breaker. Contact your
maintenance person or Antunes
Technical Service if it trips again.
Switch is inoperable.
Contact your maintenance person or
Antunes Technical Service.
Control Display is blank (power is on and
indicator light is on).
Control Board is inoperable
Contact your maintenance person or
Antunes Technical Service.
Transformer is inoperable.
Loose, burnt, or broken wires in
circuit.
Unit does not heat up (Control Display is
on).
Hi-Limit Thermostat is tripped or
inoperable.
Reset the Hi-Limit Thermostat according
to the Operations section of this
manual. If the Hi-Limit Thermostat
requires continuous resetting, contact
your maintenance person or Antunes
Technical Service.
Solid State Relay is inoperable.
Thermocouple is inoperable.
Control Board is inoperable.
Steam Generator is inoperable.
Loose, burnt, or broken wires in
circuit.
The unit’s main electrical panel
circuit breaker trips.
Damaged receptacle, plug, or cord;
a loose connection; or an internal
component failure.
Turn the unit off, allow it to cool to room
temperature, and then restart. Contact
your maintenance person or Antunes
Technical Service if the condition repeats.
Water leaking inside electrical
housing.
Loose or damaged water line tubes and/
or fittings inside electrical
housing.
Tighten or replace tubes and/or
fittings.
“ERR” appears in the Control Display.
Programming and/or SHO and H2O
values were adjusted/changed
improperly.
Reset the Control Board as described in
the Programming section of this manual.
See Fault Codes.
WARNING
To avoid possible personal injury and/or damage to the unit, inspection, test and repair of electrical equipment should be
performed by qualified service personnel. The unit should be unplugged when servicing.
