Many in the use of air conditioning is impossible to avoid air conditioning this and that problem, usually such a problem appears, according to our normal thinking, that is the air conditioning is broken, immediately find after-sales service telephone consultation, so as to seek solutions, but the fact is on the contrary, some air conditioning problems can be easily solved by our simple treatment, For example, the e1 fault code of air conditioning, especially in summer, we use air conditioning is more common, so there are more problems, so there are more opportunities to e1, so what is the cause, how should we solve? This paper introduces Gree Air Space as an example.
First, common Gree E1 fault phenomena
E1 alarm occurs after the air conditioner is turned on and cooled for about 8 to 10 minutes. E1 alarm is the fault code of Gree Air conditioner (compressor overcurrent protection, compressor overheat protection, outdoor unit exhaust temperature protection, outdoor unit phase-sequence current protection circuit board damage). The fault phenomenon is the same after the power is turned on again.
2. Cause of E1 failure
The outdoor unit accumulated too much dust, too dirty to the air conditioning overheating protection
3. E1 fault analysis
Here, list all the problems of Gree air conditioning E1 alarm:
1, Freon caused high pressure protector action (disconnect).
2, the machine is used for a long time, refrigeration system internal leakage treatment after often add refrigerant or replace the compressor does not pay attention to, dirt into the refrigeration system caused by capillary blockage can not achieve throttling, cooling, depressurization. Pour to the air conditioner high pressure pressure is too high, low pressure pressure is too low, pressure protector action (disconnect).
4, outdoor unit phase sequence current protection circuit board is bad 5, outdoor unit condenser accumulation too much dust, too dirty to air conditioning overheating protection.
Four, Gree air conditioning e1 fault detection and elimination
After testing, the air conditioner refrigeration with pressure gauge to measure the low pressure is too high 0.75Mpa(0.5 ~ 0.6Mpa), the balance pressure after shutdown is 0.9Mpa(indicating that the system of freon is not much). The machine is used for only one year, and has not replaced the compressor, air conditioner refrigeration with pressure gauge to measure the low pressure pressure of 0.75Mpa is not negative pressure state, can eliminate the possibility of capillary blockage. Air conditioner refrigeration direct indoor fan and outdoor fan are normal operation, can eliminate the possibility of fan bad. If the outdoor unit phase sequence current protection circuit board is bad, air conditioner indoor machine running 3 to 5 minutes, indoor computer board conveying signal to outdoor unit phase sequence current protection circuit board immediately appear E1 alarm, air conditioner is not able to refrigeration. This shows that only the outdoor unit condenser accumulates too much dust and is too dirty, and the air conditioner overheating protection generates an E1 alarm.
5. Troubleshoot e1 faults
1. When the E1 alarm is found and the outdoor unit is not too dirty and overheating protection, the biggest possible reason is that the outdoor unit phase sequence current protection circuit board is bad. In the case of no replacement of parts, we can temporarily jump off. Method: Open the cover under the bottom of the indoor machine, open the iron sheet cover on the top of the indoor machine fan can see that there is a yellow power line on the indoor computer board (marked with OVC letters, this line is the protection line), find a power line from the indoor machine zero line connected to this yellow line (on the computer board can not take it, as usual, just lead a zero line and it), After the connection is good, the air conditioner can be refrigerated normally. If it can not refrigerate, the outdoor unit protection relay is bad.
2. When we arrived at the base station, we found that Gree indoor and outdoor units were operating normally, and it was in the refrigeration mode test state. When the air conditioner could not refrigerate, the reason was that the three-phase phase of the air conditioner was out of phase.
Because many families are using Gree air conditioning, this paper mainly introduces Gree air conditioning. Because this problem occurs frequently, but the code used by each air conditioning manufacturer is different. If the above several phenomena occur, we can conclude that it is caused by unclean air conditioning inside. At this time we need to carry out the corresponding air conditioning cleaning work, of course, here Xiaobian still want to remind you that when you see the air conditioning fault code, the first thing to do is to find the manual, see the official fault code explanation, if you can not solve the problem, timely seek after-sales service.
