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Ruud air conditioner showing code 29 / L29 on the Ruud/Rheem EcoNet-connected outdoor units (AC/Heat Pump)? EcoNet code 29 = 'High Pressure Control Open'; L29 = 'Active Protection, High Pressure Control Trip'. The high-pressure safety switch has opened due to abnormally high system pressure, shutting down the compressor to protect it. Here is what it means, what you can safely check, and when to call a licensed CANRO technician in an urgent situation across Metro Vancouver.
What not to touch: beyond these checks, do not open the unit or touch the gas valve, wiring, control board or refrigerant lines. In BC, gas and HVAC repairs must be done by a licensed technician — both for your safety and to keep your manufacturer warranty valid.
Same-day diagnosis across Metro Vancouver. We carry common parts and quote up front.
📞 (604) 359-1081 Request a quoteA single fault code rarely means you need a new air conditioner. The deciding factors are the unit’s age, the cost of the failed component versus its efficiency, and whether it’s a recurring problem. Our technicians give you an honest diagnosis and a written repair-or-replace recommendation — never a scare-sell. Explore more air conditioner guides and services or browse all HVAC error codes we fix.
Applies to Ruud Ruud/Rheem EcoNet-connected outdoor units (AC/Heat Pump). Code behaviour can vary by model and control board — our technician confirms the exact cause against your unit before any repair.
CANRO Heating & Cooling — TSBC Class-A gas-fitting licence · Red Seal HVAC certified · WorkSafeBC and liability insured · 4.9★ from 85+ Google reviews · Serving Metro Vancouver since 1999.
“Canro does an amazing job! Super professional and skilled with everything—boilers, furnaces, and AC. Always a pleasure working with them!”
“Five stars for Canro. We needed a replacement of a 30-year-old boiler. A new high-efficiency unit was installed—clean, professional work.”
“I can’t speak highly enough about George, who was recommended for a boiler service call for my parents’ home. George is excellent.”
25+ years keeping Metro Vancouver homes comfortable. Honest advice, upfront pricing, work that lasts.