How to solve the problem that the high and low temperature test chamber cannot be operated after booting

High and low temperature test chamber, high and low temperature alternating test chamber, high and low temperature alternating humidity and heat test box is a precision test instrument, if the equipment can not be turned on or can not run after boot can not be opened? There are many parts and protective devices inside the test equipment, and the failure of a part or the start of a protective device will lead to failure to open the machine and cannot
run.

There are mainly the following reasons: 1, generally will not appear, that is, the instrument equipment lock function, at this time press the run key will not respond
.

2.
Check whether the power line contact is good, whether the main control switch circuit breaker is good, and whether it is burned and damaged; 3.
Whether the contactor or relay is in good contact or whether it is burned and damaged; 4.
Whether the over-temperature setting is correct, and whether the over-temperature protector is misadjusted or damaged
.

5.
Whether the phase sequence connection of the power supply line (phase sequence relay) is correct, and whether the phase sequence is wrong
.

6, whether the water tank has enough water, insufficient water level will also lead to the machine can not open and run
.

Mainly some of the above problems, of course, there may be several problems at the same time, users can be their own one by one to exclude or contact the manufacturer
.