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~~~
~~~
TROUBLESHOOTING GUIDE
qualified electrician
to avoid risk
o f
shock or per-
sonal
injury.
NOTE:
Check
all
possible solutions before disassembling
the
heater.
The heater will not heat
7
The temperature is too high
CAUSE
No current
Faulty circuit board
Burned out heating element
Low line voltage
Faulty circuit board
Wrong temperature setting
Clogged fluid passages
flow rate too high
fluid requires more warmup time
Faulty circuit board
Wrong temperature setting
Clogged fluid passages
flow rate too high
Loose bolts, damaged seals
Clogged fluid passages
SOLUTION
Check the circuit, fuses.
Replace the cover and circuit board
assembly
120)
Replace the housing
Correct the wiring
assembly
120)
Replace the wver and circuit board
Adjust the knob
Clean them
Reduce, use 2 heaters
Increase
assembly
120)
Replace the cover and circuit board
Adjust the knob
Clean them
Reduce, use 2 heaters
Tighten, replace the seals
Clean them
Remove
an and plate (21
) and
use a
wire bottle brush
to
If Fluid
Passages Are Clogged
clean.
If
necessary, us8
1/2
in.
(13
mm) hand reamerto
remove hard, caked deposits.
When
putting the end
plates back on, turn
in all
screws hand
tight.
Following
the sequence shown
in Fig 5,
torque each screw
to
50
in-lb (5.6 Nm ) ,
then retorque them, using the same
sequence, to 170-180 in-lb (19.2-20.5
Nm).
Rg 6
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