Trouble Shooting Tips; Error Codes - Challenge MPS3-08CRN1-QB6G1 Instruction Manual

TROUBLESHOOTING TIPS
TROUBLE SHOOTING

Error codes:

E1- Room temperature sensor error-
Unplug the unit and plug it back in.
If error repeats, call for service.
E2- Evaporator temperature sensor error-
Unplug the unit and plug it back in.
If error repeats, call for service.
E4- Display panel communication error-
Unplug the unit and plug it back in.
If error repeats, call for service.
TROUBLES
1. Unit does not
Start when
Pressing on/off
Button
2. Not cool enough
4. Noisy or vibration
5. Gurgling sound
6. Power shut off at
Heating mode
Protection codes:
P1- Bottom tray is full - Connect the
drain hose and drain the collected
water away. If error repeats, call
for service.
NOTE: When more than one codes occur,
POSSIBLE CAUSES
- P1 appears in the display window
- Room temperature is lower than
the set temperature.(Cooling mode)
- The windows or doors in the room
are not closed.
- There are heat sources inside the
room.
- Exhaust air duct is not connected or
blocked.
- Temperature setting is too high.
- Air filter is blocked by dust.
- The ground is not level or not flat
enough.
- The sound comes from the flowing
of the refrigerant inside the
air-conditioner.
- The automatic over heat
protection function. When the
temperature at the air outlet
O
exceed 70 C,th e de vice will
st op.
12
the priority of the code display order is:
E4--E2--E1--P1.
SUGGEST REMEDIES
Drain the water in the bottom tray.
Reset the temperature.
Make sure all the windows and
doors are closed.
Remove the heat sources if possible.
Connect the duct and make
sure it can function properly.
Decrease the set temperature.
Clean the air filter.
Place the unit on a flat, level
ground if possible.
It is normal.
Switch on again after the unit
has cool down.