Stulz Compact CWE Series - Page 19

(© Aug, 2006)
Compact CWE Series Installation, Operation & Maintenance Manual
SYMPTOM PROBABLE CAUSE RECOMMENDATION
4-3
System Short of Capacity d. Dirty Coil Clear coil fins of debris
(cont.)
Electric Heater a. Circuit breaker tripped. Check for short circuit, reset circuit
Inoperable breaker.
b. Temperature setpoint too low. Increase temperature setpoint.
c. Overheat switch open. Insufficient air across heater elements.
Check for dirty filters or obstructions
that may reduce air flow. Correct or
replace as needed.
d. Manual reset overheat safety Reset manual overheat safety switch
switch tripped. (See item immediately above).
e. Heater element burned out. Check continuity with an ohmmeter.
Replace heater element.
Hot Water Heater a. Low hot water flow. Check hot water flow at supply source.
Inoperable Inspect piping for leaks or obstructions.
b. Hot water supply temperature too Check hot water supply.
low
c. Temperature setpoint too low. Increase temperature setpoint.
d. Control power interrupted. Check for loose or broken wires.
Humidifier Inoperable a. Water supply has been turned Connect and/or turn on water supply.
Note: See Humidifier off or not connected.
Manual for Additional Help.
b. Electrical connections are loose. Tighten electrical connections.
c. Humidifier circuit breaker tripped. Check for over current by the humidifier
electrodes. Drain water from tank and
refill. Reset circuit breaker.
d. Relative humidity is above setpoint. Adjust humidity setpoint.
e. Electrode canister change cylinder 1. Consult humidifier manual.
light is on.
2. Water conductivity is too low and
water is at the top of the cylinder
(see next item).
f. Water conductivity is too low. Add a teaspoon of table salt to the water
through the top of the cylinder. Typically
only on initial start-up.