TROUBLESHOOTING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
PROBLEM |
| CAUSE |
| CORRECTION | ||
|
|
|
|
|
| |
| 1. | Unit not turned “ON” or not set dry | 1. | Set control to “CONTINUOUS.” This will allow the fan and com- | ||
|
| enough. |
| pressor to run regardless of the ambient humidity. | ||
|
|
|
|
|
| |
| 2. | No power to unit. | 2a. | Power supply cord not plugged in. Plug in cord. | ||
|
|
| 2b. | Unit plugged into outlet that has no power to it (blown fuse or | ||
|
|
|
| tripped circuit breaker). Advise customer to correct this problem | ||
Unit will not run - no fan |
|
|
| with a qualified electrician. | ||
|
|
|
|
| ||
and no compressor. | 3. | Bucket In/Water Level switch open. | 3a. | Empty bucket. | ||
|
|
| 3b. | Make sure bucket is installed properly. | ||
|
|
| 3c. Check switch. Replace, if defective. | |||
|
|
|
|
|
| |
| 4. | Defective power supply cord or loose | 4. | Check wiring and supply cord. Repair or replace defective parts. | ||
|
| wiring in unit. |
|
|
| |
|
|
|
|
|
| |
| 5. | Defective humidistat. | 5. | Run diagnostics. Replace electronic control, if needed. | ||
|
|
|
|
|
| |
| 1. | Mechanical Models: Deicer thermostat | 1a. | Let evaporator coil thaw. Normal if coil is frosted over. | ||
|
| open. | 1b. | Replace deicer thermostat if it is still open after coil thaws and | ||
Fan runs - compressor |
|
|
| warmed up. | ||
2. | Electronic Models: Thermistor out of | 2a. | Unit in defrost mode. Raise room temperature. |
| ||
does not run. |
| range or evaporator is less than 30°F. | 2b. | Run diagnostics. Replace electronic control, if needed. | ||
|
|
|
|
|
| |
| 3. | Compressor overload or relay defective. | 3. | Check both components and replace, if defective. | ||
|
|
|
|
|
| |
| 4. | Compressor windings open. | 4. | Check continuity and replace if one or both windings are open. | ||
|
|
|
|
|
| |
Fan does not run - | 1. | Fan motor not getting power. | 1. | Check wiring. Repair or replace, as necessary. | ||
|
|
|
|
| ||
2. | Fan motor defective. | 2. | Replace fan motor. | |||
compressor runs. | ||||||
|
|
|
|
| ||
3. | Fan blade jammed. | 3. | Remove obstruction. Replace if fan blade is damaged. | |||
| ||||||
|
|
|
|
|
| |
Fan and compressor run - | 1. | Ambient room temperature is too cold | 1. | Turn unit off until room temperature reaches 65°F (18.3°C). | ||
evaporator coil frosted over. |
| (non deicer model). |
|
|
| |
|
|
|
|
|
| |
Fan and compressor run - | 1. | Unit out of refrigerant. | 1. | Follow sweep charge procedure to find and repair leaks. | ||
|
|
|
|
| ||
2. | Humidity too low. | 2. | Turn unit off until humidity goes up. | |||
no dehumidification. | ||||||
|
|
|
|
| ||
3. | Dirty evaporator or blocked air filter. | 3. | Clean air filter and/or evaporator. | |||
| ||||||
|
|
|
|
|
| |
| 1. | Area is not sealed off - open doors and/ | 1. | Isolate area by closing doors and windows. | ||
|
| or windows. |
|
|
| |
|
|
|
|
|
| |
Unit runs - insufficient | 2. | Grilles obstructed. | 2. | Move unit or items so grilles are not blocked. | ||
|
|
|
|
| ||
3. | Dirty evaporator or blocked air filter. | 3. | Clean air filter and/or evaporator. | |||
dehumidification. | ||||||
|
|
|
|
| ||
4. | Low refrigerant charge. | 4. | Follow sweep charge procedure to find and repair leaks. | |||
| ||||||
|
|
|
|
|
| |
| 5. | Unit too small for area being | 5. | Close off into smaller area. | ||
|
| dehumidified. |
|
|
| |
|
|
|
|
|
| |