Hisense GBF18H-S User Manual (English)

Questions and Answers:

S
Scott MartinezAug 18, 2025
What to do if there is a communication fault between the indoor and outdoor unit of my Hisense GBF18H-S?
- R
  Ricardo PetersenAug 18, 2025
  The communication fault between the indoor and outdoor units of your Hisense Air Conditioner can stem from several causes. First, check if the connection cable is correctly wired according to the wiring diagram. A loose communication cable can also be the culprit, so ensure it's securely connected. If the cable is damaged, replace it. Other potential issues include a faulty indoor or outdoor control board, in which case, replacing the respective board is necessary. Also, inspect the communication circuit for an open fuse, adjusting the DIP switch and short-circuit fuse as needed. Finally, ensure the communication cable meets the specifications outlined in the user manual.
J
Jasmin RodriguezAug 21, 2025
Why is my Hisense GBF18H-S Air Conditioner showing a compressor overheat protector device error?
- T
  Taylor GutierrezAug 21, 2025
  If your Hisense Air Conditioner's compressor overheats, it could be due to several reasons. Start by checking if the wiring of the overload protector is loose and reconnect it if necessary. If the overload protector is faulty, replace it. Insufficient refrigerant can also cause overheating; inspect the welding points for leaks and recharge the refrigerant if needed. If the installation pipe is longer than usual, ensure enough refrigerant has been added. A faulty expansion valve may also be the cause, requiring replacement. Lastly, a failing outdoor control board could be the issue, so consider replacing it.
S
Samantha OwensAug 23, 2025
What to do if my Hisense GBF18H-S turns off for high pressure protection?
- L
  Lauren GrayAug 23, 2025
  If your Hisense Air Conditioner shuts off due to high pressure protection, start by checking the wiring of the high-pressure protector and reconnect it if it's loose. If the protector is faulty, replace it. An abnormal outdoor control board can also trigger this issue, requiring replacement. Overload in cooling or heating modes may also cause this problem.
A
Alan WebbAug 26, 2025
What causes the low pressure switch protection in my Hisense Air Conditioner?
- J
  Joseph ElliottAug 26, 2025
  If your Hisense Air Conditioner turns off due to low pressure protection, begin by checking the low-pressure switch for faults and ensure its wiring is securely connected. If the switch is defective, replace it. Insufficient refrigerant can also cause this issue; inspect the welding points for leaks and add refrigerant as needed. In heating mode, a faulty expansion valve may be the cause, requiring replacement. Lastly, a malfunctioning outdoor control board could be the culprit, so consider replacing it.
B
Brittany SanchezAug 27, 2025
What to do if my Hisense GBF18H-S has the unit over-current turn off fault?
- E
  Elijah BurgessAug 27, 2025
  If your Hisense Air Conditioner is experiencing an over-current shutdown, it may be due to a failure in the control board's current sampling circuit, which would require replacing the electrical control board components. The current might be too high because the supply voltage is too low, resulting in normal protection. A blocked compressor can also cause this issue, necessitating its replacement. Overload in cooling or heating mode can also cause this issue.
Y
ygarciaAug 30, 2025
Why is there a phase current imbalance in my Hisense GBF18H-S?
- J
  Justin KiddAug 30, 2025
  Phase current imbalance in your Hisense Air Conditioner can arise from several factors. First, check if the supply voltage fluctuates more than 4%. A loose connection in the compressor power cord can also cause this, so reconnect the wire according to the wiring diagram. If the AC contactor is faulty, replace it. Lastly, the compressor motor itself might be failing, requiring compressor replacement.
D
Denise SanfordSep 1, 2025
What causes cooling freezing protection or heating overload in my Hisense Air Conditioner?
- R
  Richard SweeneySep 1, 2025
  If your Hisense Air Conditioner is experiencing cooling freezing protection or heating overload, it may be because the indoor unit cannot blow air normally; check the indoor fan, indoor fan motor, and evaporator. It could also be due to the room temperature being too low in cooling mode or too high in heating. A dirty filter can restrict airflow, so clean it. Check the volume control valve and duct length. Setting the fan speed too low can also cause this issue, so set it to high speed. Lastly, if the indoor unit was not installed correctly, reinstall it according to the user manual, ensuring proper distance from the wall or ceiling.
W
wsmithSep 3, 2025
What does EEprom Data error mean on my Hisense GBF18H-S Air Conditioner?
- A
  Anthony WongSep 4, 2025
  If your Hisense Air Conditioner displays an EEprom Data error, the EE components may be failing, requiring replacement. It could also be due to a failure in the EE components control circuit, necessitating replacement of the outdoor control board components. Another possibility is that the EE components are inserted incorrectly, in which case, reassemble them.
I
Isabella HobbsSep 5, 2025
What causes a U phase current fault in my Hisense GBF18H-S?
- K
  Kathleen FernandezSep 6, 2025
  If your Hisense Air Conditioner is showing a U phase current fault, it may be due to a faulty or incorrectly connected compressor U phase power cord; replace or reconnect the U phase power cord according to the wiring diagram. The outdoor control board could also be at fault, requiring replacement. Finally, the compressor itself might be failing, necessitating its replacement.
S
Stephanie AlexanderSep 8, 2025
Why is my Hisense GBF18H-S Air Conditioner showing a V phase current fault?
- M
  Mia AdamsSep 8, 2025
  If your Hisense Air Conditioner is showing a V phase current fault, it may be due to a faulty or incorrectly connected compressor V phase power cord; replace or reconnect the V phase power cord according to the wiring diagram. The outdoor control board could also be at fault, requiring replacement. Finally, the compressor itself might be failing, necessitating its replacement.