12
307363
Troubleshooting
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 8.
Before servicing this equipment always make sure to
relieve the pressure.
Check all possible problems and solutions before
disassembling the heater.
PROBLEM
CAUSE
SOLUTION
Heater will not heat
No current.
Check circuit, fuses.
Faulty circuit board.
Replace the cover and circuit board
assembly (20).
Burned out heater element.
Replace the housing.
Temperature too low
Fluid requires more warmup time.
Increase warmup time.
Wrong temperature setting.
Adjust the knob.
Flow rate too high.
Reduce flow rate or use two
heaters.
Clogged fluid passages.
Clean. Flush regularly.
Faulty circuit board.
Replace the cover and circuit board
assembly (20).
Temperature too high
Wrong temperature setting.
Adjust the knob.
Faulty circuit board.
Replace the cover and circuit board
assembly (20).
Too much pressure drop / fluid will
not flow
Flow rate too high.
Reduce flow rate or use two heat-
ers.
Clogged fluid passages.
Clean. Flush regularly.
Leakage from end plates
Loose bolts, damaged seals.
Tighten or replace seals.
Содержание 226816
Страница 13: ...307363 13 Notes...
Страница 17: ...307363 17 Notes...
Страница 22: ...22 307363 Dimensions Mounting Hole Layout 4 in 102 mm 6 5 in 165 mm 0 41 in 10 4 mm dia...
Страница 23: ...307363 23 Notes...