# Hydroflow Plumbing Inc.

> San Francisco and Marin County's trusted plumbing, radiant heating, and boiler specialists since 2004. Licensed (CSLB #1004731), insured, and authorized service provider for Navien, A.O. Smith, and Bradford White.

## About

Hydroflow Plumbing Inc. is a full-service plumbing and hydronic heating company based in San Francisco, California. We specialize in boiler installation and repair, radiant heating systems, water heater service, leak detection device installation, and Eichler home plumbing. We serve San Francisco, Novato, San Rafael, and the greater Marin County area.

## Services

- [Boiler Services](https://hydroflow.info/boilers/): Installation, repair, and maintenance of residential and commercial boilers including Navien, Viessmann, Lochinvar, and IBC Technologies.
- [Radiant Heating](https://hydroflow.info/radiant-heating/): Design, installation, and repair of hydronic radiant floor heating systems for new construction, remodels, and Eichler homes.
- [Water Heaters](https://hydroflow.info/water-heaters/): Tank, tankless, and heat pump water heater installation and repair from A.O. Smith, Bradford White, Rheem, Rinnai, and Takagi.
- [Leak Detection](https://hydroflow.info/leak-detection/): Insurance-required smart water shutoff and leak detection device installation.
- [Eichler Plumbing](https://hydroflow.info/eichler-plumbing/): Specialized plumbing and radiant heating services for Eichler homes, including boiler replacement, system flushing, and original slab preservation.
- [Multifamily](https://hydroflow.info/multifamily/): Commercial plumbing for apartment buildings, HOAs, and property managers including boiler replacement and hot water recirculation.

## Service Areas

- [San Francisco](https://hydroflow.info/san-francisco/): The Richmond, The Sunset, Hayes Valley, Inner Richmond, Inner Sunset, Outer Richmond, Outer Sunset
- [Novato & Marin County](https://hydroflow.info/novato/): Novato, San Rafael, Lucas Valley, Terra Linda, Marinwood

## Authorized Brands

Navien, A.O. Smith, Bradford White, Rheem, Rinnai, American Standard, Viessmann, Lochinvar, IBC Technologies, Takagi, NTI Boilers, Triangle Tube, HTP, Spacepak, Baxi, Bosch.

## Troubleshooting & Error Codes

Brand-specific error code diagnosis and troubleshooting is available on each brand page:

- [Navien Error Codes](https://hydroflow.info/brands/navien/): E003 (Abnormal Ignition), E004 (False Flame), E012 (Flame Loss), E016 (Overheating), E110 (Exhaust Blocked), E515 (Low Water Flow), E594 (Condensate Blockage)
- [Rinnai Error Codes](https://hydroflow.info/brands/rinnai/): 10 (Air/Exhaust Blockage), 11 (No Ignition), 12 (Flame Failure), 14 (Thermal Fuse), 25 (Condensate Overflow), LC (Scale Buildup)
- [Triangle Tube Error Codes](https://hydroflow.info/brands/triangle-tube/): E02 (Failed Ignition), E04 (High Water Temp), E09 (Pump Failure), E52 (High Flue Temp)
- [Takagi Error Codes](https://hydroflow.info/brands/takagi/): 111 (Ignition Failure), 121 (Flame Failure), 200 (Overheating), 291 (Flow Rate), 711 (Gas Valve/PCB)
- [Bosch Error Codes](https://hydroflow.info/brands/bosch/): EA (No Flame), EC (Ionization Fault), C6 (Fan Speed), A7 (DHW Sensor)
- [Rheem Error Codes](https://hydroflow.info/brands/rheem/): A101/A102 (Air Intake), E4/E5 (Thermostat Sensor), LED blink codes for gas models

## Contact

- Phone: (415) 623-6564
- Email: hydroflowsf@gmail.com
- Address: 3322 Balboa Street, San Francisco, CA 94121
- Website: https://hydroflow.info