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EPDT-320b
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8.3 Troubleshooting
Trouble
Cause
Remedy
Condensate is not
discharged.
1. Blockage of foreign substances in
a discharge hole of the valve
seat.
1. Disassemble and clean it.
2. The screen is clogging.
2. Disassemble and clean it.
3. The float (P) is damaged.
3. Replace it with a new one.
4. Breakage as a result of abnormal
pressure rising due to freezing or
water hammer, etc.
4. Replace the product with new one and
use it within the working pressure range.
5. Steam locking.
5. Change the piping system layout.
6. “TOP” and “BOTTOM” signs on
the name plate are in wrong
positions.
6. Adjust direction of the name plate to
position "TOP" and "BOTTOM" signs on
upside and downside respectively.
* See Caution No. 3, “6.2 Precaution for
installation” on Page 8.
Continuous blowout.
1. Foreign substances stuck on
valve, valve seat or air vent (P).
1. Disassemble and clean them.
2. Abrasion or scratches on the valve,
valve seat or air vent (P).
2. Replace the parts with new ones.
3. Insufficient capacity of the
product.
3. Replace the product with another model
of sufficient capacity.
4. “TOP” and “BOTTOM” signs on
the name plate are in wrong
positions.
4. Adjust direction of the name plate to
position "TOP" and "BOTTOM" signs on
upside and downside respectively.
* See Caution No. 3, “6.2 Precaution for
installation” on Page 8.
Steam leakage.
1. Leakage due to loosening of the
bolt.
1. Replace the cover gasket with new one,
and retighten the bolt.
2. Leakage as a result of abnormal
pressure rising due to freezing or
water hammer, etc.
2. Replace the product with new one and
use it within the working pressure range.
