| The | fan | 1. | Check if any connection has come off. | 1. Change the fan. | |||
| doesn’t run | 2. | Check is the fan is burned. | 2. Change the fan. | ||||
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| Electricity |
| 1. | The service time is too long. | 1. | Change temperature controller. | ||
| leakage | of |
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| 2. Use brush to remove dust. | |
| temperature | 2. | The environment is too dirty. | 3. | Make the temperature dry and | |||
| controller |
| 3. | Humidity is too high. |
| control the environment humidity. | ||
| Temperature | 1. | There is | leakage | of temperature |
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| sensing medium. |
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| controller | out |
| Change temperature controller. | ||||
| 2. | Damage of | cam of | contacting point | ||||
| of order |
| spring, etc. |
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| The probe of |
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| temperature |
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| sensing | tube | It | has not been mounted to position or |
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| doesn’t |
| Mount it again. | |||||
| contact |
| changed during transportation. |
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| evaporator |
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12.1.12 Procedure for fan change
(1)Switch off power and open the fan protection cover.
(2)Remove the fan bolts by using fork wrench or universal tool.
(3)Loose the fan blade and take it out.
(4)Take the fan out from the space between compressor and tubes.
(5)Mount new fan from the space between the compressor and tubes, put blade onto position and secure it by using a fork wrench or universal tool.
(6)Make a test run; check if the operation is normal, if there is any blocking of blade.
(7)Make sure not to bend or damage tubing during removal and installation.
MAINTENANCE SERVICE AND TROUBLE SHOOTING
Maintenance Service and Trouble Shooting
12.1.13 Procedure for temperature controller change
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