The Casa Blog

The interior components of a boiler, showing the pilot light assembly and burners.

Hvac

What to Do When Your Boiler Pilot Light Goes Out

No heat from your boiler? The pilot light is a common cause. This guide helps you safely diagnose and relight both standing pilot and electronic ignition boilers.

A close-up view of a thermostatic radiator valve on a white radiator.

Hvac

How to Fix a Stuck Radiator Valve

A stuck radiator valve can leave your room too hot or too cold. Learn how to identify your valve type and safely loosen it yourself in a few simple steps.

A home radiator that is cold on top and warm on the bottom, indicating a heating problem.

Hvac

How to Fix a Radiator That Is Not Heating Up

A cold radiator can be frustrating, but the fix is often simple. Learn how to diagnose if your issue is trapped air, low pressure, or sludge for both hot water and steam systems.

A person checking their boiler's display which shows an error.

Hvac

How to Fix a Boiler Not Producing Heat A DIY Guide

Woke up to a cold house or a lukewarm shower? Our guide walks you through the most common boiler problems, from low pressure and air-locked radiators to thermostat issues, so you can get your heat and hot water back on.

An outdoor heat pump condenser unit next to a house.

Hvac

Why Your Heat Pump Keeps Turning On and Off And How to Fix It

Is your heat pump constantly turning on and off? This 'short cycling' wastes energy and wears out your system. Our guide walks you through the most common causes—from simple thermostat fixes to dirty filters and frozen coils—to help you restore comfort and efficiency to your home.

A newly installed smart thermostat displaying the temperature.

Hvac

How to Install a Smart Thermostat A DIY Guide

Ready to upgrade to a smart thermostat? This DIY guide walks you through checking compatibility, understanding your system's wiring (including the C wire), and installing your new device on both conventional and heat pump systems. Save energy and add convenience with our step-by-step instructions.

Hvac

Why Wont My AC Turn Off How to Fix a Constantly Running HVAC

Is your HVAC system running nonstop, causing high energy bills and an uncomfortable home? This guide will walk you through simple thermostat checks to diagnose and fix the problem, from fan settings and battery issues to sensor accuracy and wiring.

A person bleeding a hot water radiator with a radiator key.

Hvac

How to Bleed a Radiator and Get Your Heat Back On

Is your radiator cold at the top or making strange gurgling sounds? Trapped air is likely the culprit. Our step-by-step guide shows you how to bleed your radiators in minutes, improve your home's heating efficiency, and lower your energy bills.

A boiler pressure gauge indicating low pressure below 1 bar.

Hvac

How to Fix Low Boiler Pressure and Get Your Heating Back On

Woken up to a cold house and no hot water? Low boiler pressure is a common culprit. This guide will walk you through diagnosing the issue, safely re-pressurizing your system, and knowing when it's time to call a pro.