TROUBLESHOOTING

SYMPTOM

 

POSSIBLE CAUSE

 

 

POSSIBLE REMEDY

Booster pump doesn't

1.

Storage tank ball valve closed.

1.

Open ball valve.

operate.

2.

No power at electrical outlet.

2.

Restore power at outlet.

 

3.

Transformer malfunction.

 

 

 

 

4.

Booster pump malfunction.

3-5.

Contact your local Hobart Service office.

 

5.

High pressure switch malfunction.

 

 

 

 

 

 

Booster pump runs

1. Sampling shutoff valve or

1. Close valve(s).

continuously.

 

equipment valve malfunction.

 

 

 

 

2.

Check Valve on product water

 

 

 

 

 

outlet of RO membrane housing

2-3. Contact your local Hobart Service office.

 

 

malfunction.

 

 

 

 

 

 

3.

High pressure switch malfunction.

 

 

 

 

 

 

 

 

No RO product water

1.

No power at electrical outlet.

1.

Restore power at outlet.

output to equipment.

2.

Inlet shutoff or output valve(s)

 

 

 

 

 

closed.

 

 

 

 

3.

Clogged pre-filter(s).

2-5.

Contact your local Hobart Service office.

 

4.

Transformer malfunction.

 

 

 

 

5.

Electronic shutoff valve

 

 

 

 

 

malfunction.

 

 

 

Low RO product water

1.

Clogged filter(s).

1.

Replace filter(s).

output to equipment.

2.

Low inlet water pressure.

 

 

 

 

3.

Mineral scaling on RO

 

 

 

 

 

membrane.

2-4.

Contact your local Hobart Service office.

 

4.

Permeate pump malfunction.

 

 

 

Low RO product water

1. Storage tank air pressure not

 

 

 

yield. (Draw down less

 

correct.

 

 

 

than 13 gallon when

2. Low inlet water pressure.

 

 

 

full)

3.

Clogged filter(s).

1-5.

Contact your local Hobart Service office.

 

 

4.

Mineral scaling on RO

 

 

 

 

 

membrane.

 

 

 

 

5.

Permeate pump malfunction.

 

 

 

 

 

 

 

 

Equipment water level

1.

Product water mineral content too

1.

Contact your local Hobart Service office.

probes not operating

 

low.

 

 

 

properly.

2.

Bypass valve set incorrectly.

2.

Ensure bypass valve is closed.

 

3.

Cooking equipment probe

3. Check cooking equipment instruction

 

 

malfunction.

 

manual for possible solution.

 

 

 

 

 

 

Metallic plumbing on

1.

Product water mineral content too

 

 

 

equipment shows

 

low.

1.

Contact your local Hobart Service office.

signs of corrosion.

 

 

 

 

 

Brine water flows

1. Check Valve on product water

 

 

 

continuously through

 

outlet of RO membrane housing

1-2. Contact your local Hobart Service office.

drain. (Booster pump

 

malfunction.

 

 

 

 

is not operating.)

2.

Permeate pump malfunction.

 

 

 

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