CHECK VALVE FAILURE
DIAGNOSTICS
• Usual false diagnostics are:
1. Control board failure
2. Harness failure
3. Transducer failure
• The check valve failure symptoms are:
1. Water pressure and syrup pressure are within +/- 1 psi difference
2. Can’t brix properly
3. Low brix in barrel, and can lead to beater low, frosty compressor, short
cycle, and compressor run too long
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