AO Smith GVR301 Manuals

Manuals and User Guides for AO Smith GVR301. We have 1 AO Smith GVR301 manual available for free PDF download: Service Handbook

A.O. Smith GVR301 Service Handbook

A.O. Smith GVR301 Service Handbook (32 pages)

Residential FVIR Gas Water Heaters

Brand: A.O. Smith | Category: Water Heater | Size: 3.51 MB

Table of Contents

Table of Contents
2
General Safety

4
Completed Installation Typical

6
System Basics

7
- Honeywell® Gas Control Valve/Thermostat
  7
  - Gas Pressures
    7
  - Temperature Settings
    7
- Combustion Chamber with TCO Switch
  8
Lighting the Pilot / Diagnostic Flash Codes

9
- Lighting the Pilot
  9
- If the Status Light Does Not Blink
  9
- If the Pilot Does Not Light
  9
- If the Pilot Lights but the Status Light Does Not Blink
  9
- Diagnostic Flash Codes
  10
  - Flashes (LED Not Lit)
    10
  - Status Light on (Solid)
    10
- 1 Flash
  
  10
- 2 Flashes
  
  10
System Checks

11
- Draft Test
  11
- Connections Check
  11
- Gas Pressure Checks
  11
- Thermopile Check (Open Circuit)
  12
- Thermopile Check (Closed Circuit)
  12
Common Issues

13
- No Hot Water
  13
- Not Enough Hot Water
  13
- Tank Leak
  15
- Temperature too High
  16
- Low Water Pressure
  16
- Water Odor
  16
Service Procedures

17
Supplements

21
- Evaluating Combustion and Ventilation Air Supply
  21
- Attic Installations
  23
  - Overview
    23
  - Pilot Outage
    23
    
    Elevated Air Temperature
    24
    
    Insufficient Makeup Air
    24
    
    Blocked Air Screen or Flame Arrestor
    24
    
    Improper Venting of the Water Heater
    24
    
    Decompression
    25
    
    Wind
    25
  - Water Damage
    25
  - Elevated Water Temperature
    25
- Field Installation of Draft Hoods
  26

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