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TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE POSSIBLE REMEDY
Booster pump doesn't
operate.
1. Storage tank ball valve closed.
2. No power at electrical outlet.
3. Transformer malfunction.
4. Booster pump malfunction.
5. High pressure switch malfunction.
1. Open ball valve.
2. Restore power at outlet.
3-5. Contact your local Hobart Service office.
Booster pump runs
continuously.
1. Sampling shutoff valve or
equipment valve malfunction.
2. Check Valve on product water
outlet of RO membrane housing
malfunction.
3. High pressure switch malfunction.
1. Close valve(s).
2-3. Contact your local Hobart Service office.
No RO product water
output to equipment.
1. No power at electrical outlet.
2. Inlet shutoff or output valve(s)
closed.
3. Clogged pre-filter(s).
4. Transformer malfunction.
5. Electronic shutoff valve
malfunction.
1. Restore power at outlet.
2-5. Contact your local Hobart Service office.
Low RO product water
output to equipment.
1. Clogged filter(s).
2. Low inlet water pressure.
3. Mineral scaling on RO
membrane.
4. Permeate pump malfunction.
1. Replace filter(s).
2-4. Contact your local Hobart Service office.
Low RO product water
yield. (Draw down less
than 13 gallon when
full)
1. Storage tank air pressure not
correct.
2. Low inlet water pressure.
3. Clogged filter(s).
4. Mineral scaling on RO
membrane.
5. Permeate pump malfunction.
1-5. Contact your local Hobart Service office.
Equipment water level
probes not operating
properly.
1. Product water mineral content too
low.
2. Bypass valve set incorrectly.
3. Cooking equipment probe
malfunction.
1. Contact your local Hobart Service office.
2. Ensure bypass valve is closed.
3. Check cooking equipment instruction
manual for possible solution.
Metallic plumbing on
equipment shows
signs of corrosion.
1. Product water mineral content too
low. 1. Contact your local Hobart Service office.
Brine water flows
continuously through
drain. (Booster pump
is not operating.)
1. Check Valve on product water
outlet of RO membrane housing
malfunction.
2. Permeate pump malfunction.
1-2. Contact your local Hobart Service office.