GQ-C60 Series · Pre-Mix 2nd

Error Code 20

High Limit Switch - Primary Heat Exchanger triggered

Step 1

Step 1

Normal Abnormal

Step 2

Step 2

Display Again No Display

Step 3

Step 3

Return to Start

Step 4

Step 4

Return to Start

Step 5

Step 5

Return to Start

Step 6

Step 6

Return to Start Display Again

Step 1