Hayward HP50A - Page 44

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An E19 Error Code will appear in standby mode &
implies air temp reads <32°F & water temp is between
37°- 40°F. Jump to step 7E to verify sensors.
Error Code: E19
Step 7C
An E29 Error Code will appear in heating mode &
implies air temp reads <32°F & water temp < 36°F.
Jump to step 7E to verify sensors.
Error Code: E29
Step 7D
Error Codes: E07, E19, & E29 all refer to different versions of freeze protection and are
based on reported temperature reading by the ambient air temp sensor and inlet
water temp sensor.
7. Error Code: E07/E19/E29 (cont.)