3.
Contactor is burned or welded
3.1 Check the contactor for burn
marks and blackening. Replace
the contactor.
3.2 Check incoming power to the
heater to ensure there are no
voltage fluctuations.
4.
Heat exchanger is dirty
4.1 Clean the heat exchanger
using compressed air.
5.
PRV has released
5.1 If there are signs that the
PRV has released fluid, PRV
indicator is broken, blackening
around the PRV exit hole, or
there are fluid stains visible on
the top louver, shut the unit
down immediately.
5.2 Check for restricted air flow,
bad motor, broken thermostat
or malfunctioned high limit.
Ruffneck™ Troubleshooting Tips
1.
Heater is not operating
1.1 Check all fuses in heater
control box.
1.2 Check remote disconnect
switch and circuit breaker.
1.3 Check voltage supplied to the
heater – refer to the heater data
plate for voltage requirements.
1.4 Check thermostat by turning
it and check continuity with a
multimeter.
1.5 Check the condition of the
disconnect switch if the heater
is so equipped. Measure
continuity through the
disconnect by engaging the
switch.
1.6 Verify that there is a jumper
wire present between terminals
5 and 6 on the terminal block
located in the control box.
2.
Contactor is chattering.
2.1 Check supply voltage.
2.2 Check wiring connections.
Tighten all loose electrical
connections.
2.3 Check thermostat for continuity
(See 1.4). If thermostat does
not break continuity, replace
thermostat.
CAUTION: DO NOT FORCE
CONTACTS CLOSED
CAUTION: DO NO USE WATER
TO CLEAN THE HEATER.
CAUTION: IF PRV HAS
RELEASED, SEND THE UNIT
IN FOR REPAIR OR
REPLACE THE CORE.
