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Watts 1790 1" water pressure reducing valve Parts
Here are the diagrams and repair parts for Watts 1790 1" water pressure reducing valve, as well as links to manuals and error code tables, if available.
Error Codes
By Schematic
SELECT DIAGRAM
Browse Parts for 1790 1" Water Pressure Reducing Valve
Replacement parts diagram
Strainer
Part #135A77
The manufacturer no longer makes this part, and there's no substitute part
Replacement parts diagram
Diagram
Part #135B20
The manufacturer no longer makes this part, and there's no substitute part
Replacement parts diagram
Plate
Part #135A66-M2
The manufacturer no longer makes this part, and there's no substitute part
Replacement parts diagram
Lock Washer
Part #174C46
The manufacturer no longer makes this part, and there's no substitute part
#NI
All parts diagram
Service Kit
Part #5C
The manufacturer no longer makes this part, and there's no substitute part
Replacement parts diagram
Spring Cage
Part #135B3-M3
The manufacturer no longer makes this part, and there's no substitute part
Replacement parts diagram
675.4 (1/2")
Part #56C8102
The manufacturer no longer makes this part, and there's no substitute part
Replacement parts diagram
Adjustment Nut
Part #30B33
The manufacturer no longer makes this part, and there's no substitute part
Replacement parts diagram
Plug
Part #N36A2
The manufacturer no longer makes this part, and there's no substitute part
Replacement parts diagram
Gasket
Part #1-1/16X1-1/4
The manufacturer no longer makes this part, and there's no substitute part
Most common symptoms to help you fix your ranges
Choose a symptom to see related range repairs.
Main causes: power supply failure, blown thermal fuse, bad relay control board, damaged terminal block, wiring failure…
Main causes: broken broiler element, weak or broken broil burner igniter, control system failure, faulty temperature sen…
Main causes: power supply problem, control thermostat or electronic control board failure, broken element, bad burner ig…
Main causes: broken oven door lock assembly, wiring failure, electronic control board problem…
Main causes: faulty temperature sensor, electronic control board problem, control thermostat failure, weak burner ignite…
Main causes: bad bake element, broken burner igniter, control system failure, blown thermal fuse, faulty temperature sen…
Main causes: food splatters, spilling food on the oven door, allowing liquid to drip through oven door vent when cleanin…
Most common repair guides to help fix your ranges
These step-by-step repair guides will help you safely fix what’s broken on your range.
How to replace a range oven door switch
The oven door switch detects whether the oven door is closed and helps control the oven light. Replace the switch if it …
Repair time and Difficulty
30 minutes or less
How to replace a range oven door lock assembly
Oven door not locking? You can replace the lock assembly in less than 30 minutes. Here's how.…
Repair time and Difficulty
15 minutes or less
Effective articles & videos to help repair your ranges
Use the advice and tips in these articles and videos to get the most out of your range.
You might be surprised by these 4 tips for using your oven better.…
If your oven consistently undercooks or overcooks, it might need recalibration. You can reset it yourself.…
Take our quiz to see how well you treat your appliances. Then, find out what you can do to help them last longer.…
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